Function eth_em_start

dpdk/drivers/net/e1000/em_ethdev.c:529–722

}

static int
eth_em_start(struct rte_eth_dev *dev)
{
	struct e1000_adapter *adapter =
		E1000_DEV_PRIVATE(dev->data->dev_private);
	struct e1000_hw *hw =
		E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
	struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
	struct rte_intr_handle *intr_handle = pci_dev->intr_handle;
	int ret, mask;
	uint32_t intr_vector = 0;
	uint32_t *speeds;
	int num_speeds;
	bool autoneg;

	PMD_INIT_FUNC_TRACE();

	/*
	 * This function calls into the base driver, which in turn will use
	 * function pointers, which are not guaranteed to be valid in secondary
	 * processes, so avoid using this function in secondary processes.
	 */
	if (rte_eal_process_type() != RTE_PROC_PRIMARY)
		return -E_RTE_SECONDARY;

	ret = eth_em_stop(dev);
	if (ret != 0)
		return ret;

	e1000_power_up_phy(hw);

	/* Set default PBA value */
	em_set_pba(hw);

	/* Put the address into the Receive Address Array */
	e1000_rar_set(hw, hw->mac.addr, 0);

	/*
	 * With the 82571 adapter, RAR[0] may be overwritten
	 * when the other port is reset, we make a duplicate
	 * in RAR[14] for that eventuality, this assures
	 * the interface continues to function.
	 */
	if (hw->mac.type == e1000_82571) {
		e1000_set_laa_state_82571(hw, TRUE);
		e1000_rar_set(hw, hw->mac.addr, E1000_RAR_ENTRIES - 1);
	}

	/* Initialize the hardware */
	if (em_hardware_init(hw)) {
		PMD_INIT_LOG(ERR, "Unable to initialize the hardware");
		return -EIO;
	}

	E1000_WRITE_REG(hw, E1000_VET, RTE_ETHER_TYPE_VLAN);

	/* Configure for OS presence */
	em_init_manageability(hw);